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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2015/09/01 01:15:46 UTC

[jira] [Commented] (YARN-4024) YARN RM should avoid unnecessary resolving IP when NMs doing heartbeat

    [ https://issues.apache.org/jira/browse/YARN-4024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14724371#comment-14724371 ] 

Wangda Tan commented on YARN-4024:
----------------------------------

Latest patch LGTM, [~adhoot], any comments?

> YARN RM should avoid unnecessary resolving IP when NMs doing heartbeat
> ----------------------------------------------------------------------
>
>                 Key: YARN-4024
>                 URL: https://issues.apache.org/jira/browse/YARN-4024
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Hong Zhiguo
>         Attachments: YARN-4024-draft-v2.patch, YARN-4024-draft-v3.patch, YARN-4024-draft.patch, YARN-4024-v4.patch, YARN-4024-v5.patch, YARN-4024-v6.patch, YARN-4024-v7.patch
>
>
> Currently, YARN RM NodesListManager will resolve IP address every time when node doing heartbeat. When DNS server becomes slow, NM heartbeat will be blocked and cannot make progress.



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